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Seriously Slime Events Update | Shark Tank Season 11

Entrepreneurs Shannon Valko and Sarah McDermott pitched their slime company during Shark Tank Season 11. Seriously Slime offers a way for kids to have fun with slime, in a way that makes parents happy too. Will the sharks make an investment? Find out in our Seriously Slime update.

If you’re short on time, here’s a quick overview of what happened to Seriously Slime after Shark Tank!

Shannon Valko and Sarah McDermott appeared on Shark Tank Season 11, but walked away without a deal. In terms of a Seriously Slime update, the company is unfortunately out of business. Social media updates ended in 2021, and it seems that business took a big hit during the COVID-19 pandemic.

Shark: Result:
Robert Herjavec  No offer
Kevin O’Leary  No offer
Mark Cuban No offer
Lori Greiner No offer
Daniel Lubetzky No offer

Shark Tank Seriously Slime Update

Seriously Slime update

  • Entrepreneurs: Shannon Valko and Sarah McDermott
  • Business: Slime-making venue and event service
  • Ask: $90,000 for 15% equity
  • Result: No deal
  • Shark: None

Founders of Seriously Slime, Shannon Valko and Sarah McDermott are like most moms and quickly became aware of the issues presented by slime. Although it’s very popular with kids, it’s certainly messy, gets everywhere, and it’s impossible to get out of your carpet.

To help moms and kids, they created Seriously Slime, a company that hosts parties where kids can make slime in a play-driven environment.

Parents don’t have to worry about cleaning up, and they also have all of the customization options available. During their pitch, they even had Robert Herjavec make slime at their mobile slime center.

Although they do events, there is unfortunately nothing proprietary, which Kevin O’Leary is quick to point out. While they are in Chicago right now, they eventually want to license.

However, the sharks are less than pleased with their sales. Despite upgrading to a physical location recently, they only have $28,000 in lifetime sales.

This revenue comes from charging for events, which run from $300 to $350 per hour. The sharks don’t think franchising is a good idea.

Kevin O’Leary immediately says he hates it, so because of that, he’s out.

Mark Cuban just doesn’t see how they could make money, so for that reason, he is out.

Robert Herjavec goes out too, saying they’re not really a brand. It’s fun, but not investible.

Lori Greiner has similar advice, and because it’s not investable, she is ultimately out.

This leaves guest shark Daniel Lubetzky. The slime containers they’ve pitched are the best option, according to him. They could market those with much more success, probably because it’s a product rather than a service.

He goes on to say that slime is banned in his house due to the way it destroys furniture and carpets. For these reasons, he’s out.

None of the sharks are willing to take a bite, so Seriously Slime leaves without a deal.

But where are they following Shark Tank? Keep reading our Seriously Slime update to find out how the company is doing after the show.

We have sad news to share in our Seriously Slime update. Unfortunately, the pandemic caused Seriously Slime to close intermittently for long periods of time and they have since gone out of business.

They tried to make it work for a while, offering virtual slime parties during the pandemic, which cost much less than the parties they were doing before.

They re-opened in the middle of 2021, but it seems that the company eventually shut down for good that same year.

Social media posts ended in 2021 and their company website is down. This will be our final Seriously Slime update.

You can find the other company updates from Season 11 Episode 19 here:

For even more on companies and products, be sure to stop by our Season 11 products page!

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Andrew Smith is the founder and owner of Shark Tank Recap. He is a longtime Shark Tank fan that has been watching it for years and has seen every episode multiple times. His friends know him as the Shark Tank expert, because he can answer any question about the show! His favorite Shark Tank products are Bertello's pizza oven and Bug Bite Thing!